A particularly pernicious, nasty, form of diahhroea in which the victim feels the need to pass gas, but instead liquid shit comes squirting out resulting in a very unpleasant shitting of one's pants, often in a public or otherwise unforgiving location, far from a shithouse.

Damn, I thought I was just gonna fart, but had the Hershey Squirts and wound up shitting myself right there in the mall.